Remove Unused JavaScript Libraries

How to optimize the.sse.org

WordPress SiteScore: 67/100Analyzed February 2026

Remove Unused JavaScript Libraries

High Impact+15 points estimated

Why It Matters

Unused JavaScript is wasting 125 KiB and delaying LCP by 750ms, severely impacting user experience.

How to Fix

Disable Google Tag Manager and Analytics during development to measure impact. Remove or defer jQuery if not needed for critical functionality. Use WP Asset CleanUp to conditionally load scripts only where needed. Consider replacing heavy tracking scripts with lighter alternatives.

0Needs Improvement

What This Score Means

A score of 67 falls in the "Needs Improvement" range (50-89). While it is better than poor (0-49), you should aim for 90+ to provide an optimal user experience and maximize SEO benefits.

This site is slower than approximately 35% of similar sites. The main issues affecting performance are image optimization, JavaScript execution time, and layout stability.

Addressing these issues could improve your conversion rate by 15-20% and boost your search engine rankings.

Core Web Vitals Analysis

LCP

Largest Contentful Paint

5.7s
Poor

Good: < 2.5s

Measures how long it takes for the main content to appear on screen

INP

Interaction to Next Paint

92ms
Good

Good: < 200ms

Measures how quickly the page responds to user interactions

CLS

Cumulative Layout Shift

0.09
Good

Good: < 0.1

Measures visual stability - how much content shifts during page load

AI Performance Analysis

This WordPress site has poor performance with a score of 67/100, struggling with slow loading times that hurt user experience. The biggest problem is excessive unused JavaScript, particularly from Google Analytics and jQuery, which wastes 125 KiB of data and delays your Largest Contentful Paint by 750 milliseconds. The site takes 5.7 seconds to display its main content, which is far too slow for modern web standards. Removing unused JavaScript code, optimizing images to proper sizes, and cleaning up 19 KiB of unused CSS could dramatically improve loading speeds and boost your performance score by 20+ points.

Other Optimization Recommendations

Optimize Image Sizing and Format

Medium Impact+8 points estimated

Why It Matters:

Oversized images are wasting 26 KiB and contributing to slower LCP on mobile devices.

How to Fix:

Install Smush or ShortPixel to automatically resize images to display dimensions. Configure WordPress to serve responsive images using srcset attributes. Set up WebP conversion for modern browsers while maintaining fallbacks for older ones.

Clean Up Unused CSS Rules

Medium Impact+5 points estimated

Why It Matters:

67% of your CSS (19 KiB) is unused, increasing initial page load time unnecessarily.

How to Fix:

Use Asset CleanUp Pro to remove unused CSS from specific pages. Install Critical CSS plugin to inline above-the-fold styles and defer the rest. Audit your WordPress theme for unused font-face declarations and remove unnecessary font weights.

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